SOLUTION: Q: If m>0 and x is m% of y ,then, in terms of m, y is what% of x? Ans? Q: A dealer originally bought 100 identical batteries at a total cost of q dollars If each battery was sold

Algebra ->  Test  -> Lessons -> SOLUTION: Q: If m>0 and x is m% of y ,then, in terms of m, y is what% of x? Ans? Q: A dealer originally bought 100 identical batteries at a total cost of q dollars If each battery was sold      Log On


   

Question 1036414: Q: If m>0 and x is m% of y ,then, in terms of m, y is what% of x?
Ans?
Q: A dealer originally bought 100 identical batteries at a total cost of q dollars If each battery was sold at 50% above the original cost per battery,then, in terms of q , for how many dollars was each battery sold?
Ans?
Plz tell me any trick to solve such kind of questions in which we are ask to make condition/equation.
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
The battery dealer question.

PRICE is COST compared to QUANTITY of items.
Price is the ratio of cost of the items to quantity of the items.
cost      q      q
quantity  x     100
price     p      p

highlight_green%28p=q%2Fx%29

The first sentence for the description will give you p=q%2F100.

Second sentence describes a price change for this dealer to sell his batteries. Fifty percent above the originial price is same as %283%2F2%29p.

Question asks, what is this in terms of q. Substitute for p according to the previous equation.

%283%2F2%29p
%283%2F2%29%28q%2F100%29
%283%2Aq%29%2F%282%2A100%29
highlight%28%283q%29%2F200%29---------this is the price which the dealer will use for each battery.

Analyze the description each phrase, identify relevant basic facts and relationships or concepts, write expressions and equations.


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m, x, and y:

What does the description tell you, literally?
Put it in symbols. Do it! This one is not any mystery, requiring much less effort than the battery dealer problem.